Good day, I have a problem about exporting my layout to PDF. I want to export a PDF file with 90 inches X 300 inches output but CAD says "Paper size greater then the max. paper sizes the device can support. Please enter smaller paper sizes". Can anyone help me with this? Thank you

Maximum size in the internal PDF driver is 200 inches - see:https://www.cadforum.cz/en/what-is-the-maximum-paper-size-when-plotting-from-autocad-tip13773You can DWFx or an external PDF driver (virtual printer).

Thank you!